WO2016117975A2 - 연속 주입이 가능한 블레이드형 그라우팅 장치 및 이를 이용한 연속 주입식 그라우팅 공법 - Google Patents

연속 주입이 가능한 블레이드형 그라우팅 장치 및 이를 이용한 연속 주입식 그라우팅 공법 Download PDF

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Publication number
WO2016117975A2
WO2016117975A2 PCT/KR2016/000752 KR2016000752W WO2016117975A2 WO 2016117975 A2 WO2016117975 A2 WO 2016117975A2 KR 2016000752 W KR2016000752 W KR 2016000752W WO 2016117975 A2 WO2016117975 A2 WO 2016117975A2
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WO
WIPO (PCT)
Prior art keywords
filler
ground
mixed
blade
inner tube
Prior art date
Application number
PCT/KR2016/000752
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English (en)
French (fr)
Korean (ko)
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WO2016117975A3 (ko
Inventor
조수익
Original Assignee
(주)태화기업이엔지
조수익
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Publication date
Application filed by (주)태화기업이엔지, 조수익 filed Critical (주)태화기업이엔지
Publication of WO2016117975A2 publication Critical patent/WO2016117975A2/ko
Publication of WO2016117975A3 publication Critical patent/WO2016117975A3/ko

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    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
    • E02D3/12—Consolidating by placing solidifying or pore-filling substances in the soil
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
    • E02D3/12—Consolidating by placing solidifying or pore-filling substances in the soil
    • E02D3/126—Consolidating by placing solidifying or pore-filling substances in the soil and mixing by rotating blades
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
    • E02D3/12—Consolidating by placing solidifying or pore-filling substances in the soil
    • E02D3/123—Consolidating by placing solidifying or pore-filling substances in the soil and compacting the soil
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2250/00—Production methods
    • E02D2250/003—Injection of material

Definitions

  • the present invention relates to a grouting device and a method for reinforcing soft ground or injecting a mixed material (grout material) into the ground that requires the order, more specifically supplying the filler and the hardening material to the outer and inner tubes, respectively, these gel type in the tube It is possible to improve the workability and the performance of the mixed material by mixing the mixture, and to vortex the filler and the hardened material upward and downward during mixing, and to forcibly rotate the outer and inner tubes in the opposite direction to greatly improve the mixing property.
  • the present invention relates to a blade grouting device capable of continuous injection, and a continuous injection grouting method using the same.
  • the grouting method is to reinforce a soft ground or to prevent settlement of a structure built on a soft ground, by injecting a filling material through the cement slurry or chemical liquid, which is a flowable injection material, by injecting a filler into the ground and solidifying for a predetermined time. It is a method to repair and reinforce durability and orderability.
  • Such a grouting method has been disclosed in various ways, and typically there is a double LW (Labiles Wasserglass) method. This method is to mix the main material as a filler and the subsidiary material as a filler at a predetermined ratio and inject into the ground, by improving the completeness of the process by changing the injection material to a property suitable for the properties of the ground.
  • the LW method used a method of mixing the main material and the subsidiary material and then injecting the floated water into the ground after a certain time.
  • the main material can not be injected during the precipitation, there is a disadvantage that the material is wasted by injecting only the floating water except the main material. Therefore, in order to overcome these disadvantages, the main material and the subsidiary materials are pumped into a Y-shaped tube through separate pumps, respectively, and a method of filling the voids with the mandrel tube inserted into the ground is mixed with the main and subsidiary materials.
  • the mixing of the main material and the subsidiary material can not only rely on the Y-shaped pipe that is merged into a single pipe in both branches.
  • Korea Utility Model Publication No. 0219080 “Drug Dispensing Device for Soft Ground Reinforcement”
  • Korea Registration Utility Model Publication No. 0262656 Grouting Injection Device
  • Korea Registration Patent Publication No. 0478321 Double Inside Grouting liquid injection device equipped with the 1st and 2nd mixing guide and mixing guide and backflow prevention valve and grouting construction method using the same
  • Korean Registered Patent Publication No. 0972418 “Injection material mixing injection device and underground spraying method using the same”
  • Korea registration Patent Publication No. 1440429 proposes a grouting tip device.
  • the proposed technique is equipped with a mixing part in which the main material and the subsidiary material are pumped into the tube and the main material and the subsidiary material are mixed with each other in the tube.
  • the mixing section is equipped with a screw, a cross mixing flow passage, a mixing guide, a mixing stirrer, a forward and a reverse screw, respectively.
  • the present invention is to fundamentally solve the above-described conventional problems, by mixing the filler and the hardener in the forward and reverse blades to mix the filler and the hardener to be mixed in the forward and backward simultaneously by mixing the pressure and the filler
  • It is a blade grouting device capable of continuous injection to improve the properties, and forcibly rotates the exterior together with the blade by a motor to improve the vortex speed and the feeding force of the filler and hardener, and the continuous injection grouting method using the same.
  • the purpose is to provide.
  • one side of the present invention relates to a grouting device that is inserted into the ground and injects filler and hardener in a mixed state, and an injection hole for downwardly filling the filler is formed at the upper end, and the ground is perforated.
  • Multi-stage connection type to which the bit is fastened A multi-stage connection type inner tube inserted into the exterior and having an injection hole for feeding the cured material downward at an upper end thereof, and an outlet for discharging the hardened material pushed to the middle portion at one side thereof, and having a bit for drilling the ground at the bottom thereof; A plurality of motors respectively connected to gears at upper ends of the outer and inner tubes to rotate the outer and inner tubes in opposite directions; And a mixer in which a plurality of blades are mounted on the inner tube to feed the filler and the cured material upward and downward, and a vortex space in which the filler and the cured material are stirred to be mixed with the mixed material is formed between the blades.
  • the inner tube according to the present invention by varying the height to be inserted into the exterior arbitrarily adjusted to adjust the curing time of the mixture to an appropriate value.
  • Another aspect of the present invention relates to a grouting method for drilling a predetermined depth on the ground, and mixing and injecting a filler and a hardener in the ball, preparing an outer and inner tube connected in multiple stages according to the state of the ground and the depth of drilling, A preparatory step of mounting a blade in the outer and inner pipes so that a vortex space is formed; A supply step of sequentially inserting the prepared outer and inner tubes into the ball, and downwardly compressing the filler in the outer tube and downwardly discharging the hardener in the inner tube to the discharge port; A stirring step of rotating the motors connected to the outer and inner tubes in a reverse direction to each other, and filling and curing materials are cross-feeded upward and downward in accordance with the rotation of the blade to be integrally mixed in the vortex space; And an injection step in which the mixed material mixed in the vortex space is pressed downward along the blade, and the mixed material is penetrated into the pores in the ground and filled.
  • the injection step according to the present invention by varying the height of the inner tube according to the injection zone of the ground to adjust the curing time of the mixture to an appropriate value.
  • the present invention provides the following effects.
  • the injection tube is composed of a double outer and inner tubes
  • the filler and the hardener are injected into the gel in a mixed state in the tube, thereby improving workability and performance of the mixed material.
  • the filler and the hardener may be simultaneously pumped upward and downward to improve the mixing properties.
  • the use of the blade minimizes the frictional area between the filler and the hardener to maintain the original physical properties of the mixture.
  • the mixing ratio of the filler and the hardened material can be freely set according to the ground.
  • FIG. 1 is a block diagram showing an apparatus according to the present invention as a whole.
  • Figure 2 is an exploded view showing the main part of the appearance according to the present invention
  • FIG 3 is an exploded view showing the main parts of the inner tube and the mixer according to the present invention.
  • FIG. 4 is a block diagram showing a mixer according to a modification of the present invention.
  • FIG. 5 is a cross-sectional view showing the main portion of the device according to the present invention in a cutaway view.
  • FIG. 6 is a flow chart of the mixture showing the operation of the device according to the invention.
  • FIG. 7 and 8 is a configuration diagram showing an embodiment of injecting a mixture into the ground using the apparatus according to the present invention.
  • One aspect of the present invention relates to a grouting device that is inserted into the ground (1) to inject the filler and the hardener in a mixed state, the main configuration of the exterior 10, the inner tube 20, the motor 30 and the mixer 40 Blade type grouting device capable of continuous injection.
  • the apparatus of the present invention is not an overall apparatus required for grouting construction, but a tip (injection tube) apparatus inserted into the perforated ground 1 to inject a mixture (medicinal agent).
  • a perforator for drilling the ground 1 a pump for pumping the filler and the hardening material, and other related devices are well-known configurations and detailed descriptions and drawings are omitted.
  • the grouting device of the present invention is equipped with a perforator, and thus, a process such as drawing a casing after injecting a perforation and an injection into a continuous process can be continuously performed without moving the perforator, and the perforator (injection equipment is mounted) on the pump
  • the perforator injection equipment is mounted
  • the grouting apparatus of the present invention can be mounted in a plurality of perforator, it is possible to maximize the injection according to the conditions and site conditions of the ground (1).
  • an injection hole 11 for pumping the filler downward is formed at an upper end thereof, and a bit 15 for drilling the ground 1 is fastened to the lower end thereof.
  • Appearance 10 is made of a hollow structure that can be connected in multiple stages to adjust the length in accordance with the drilling depth of the ground (1). That is, male and female screws are formed at one end of the exterior 10 to be engaged with each other as shown in FIGS. 1 and 2. It is formed to be locked according to the rotation direction of the appearance (10).
  • the fastening portion is preferably equipped with an O-ring to improve the sealing force.
  • the inlet 10 which is fastened to the uppermost end is formed with an inlet 11 for supplying the filling material pumped from the pump inside, and the lowermost outer 10 is a bit for drilling the ground 1 or extending the inside of the ball 1a. 15 is fastened.
  • the inlet 11 is formed in a joint structure through which filler can be introduced regardless of the rotation of the exterior 10, and the bit 15 may selectively mount the perforated 15a and the expanded 15b as shown in FIG. 2.
  • the lower outer circumferential surface of the exterior 10 and the inner circumferential surface of the bit 15 are formed with screws to be engaged with each other. Therefore, the bit 15 suitable for a construction condition can be attached, and the bit 15 may be abbreviate
  • the multi-stage connection type inner tube 20 is inserted into the outer appearance 10, the injection port 21 for feeding the cured material downward on the upper end, and the discharge port 22 for discharging the hardened material to be discharged to one side. Is formed, and the bit 25 for drilling the ground 1 is fastened to the bottom.
  • the inner tube 20 is made of a cylindrical structure that can be connected in multiple stages so as to adjust the length in accordance with the depth of drilling on the ground (1) like the exterior (10). That is, male and female screws are formed at one end of the inner tube 20 so as to be engaged with each other, as shown in FIGS. 1 and 3, and are similarly formed to be locked according to the rotational direction of the inner tube 20 and an O-ring for improving a sealing force. Is fitted.
  • the inner tube 20 fastened to the uppermost end is formed with an inlet 21 for supplying the hardened material fed from the pump to the inside, and the outlet 22 for discharging the hardened material into the exterior 10 at the lower end of the inner tube 20. It is formed, the bottom 25 is fastened to the bit 25 for drilling the ground (1) or to expand the ball (1a).
  • the injection hole 21 is formed in a joint structure capable of introducing a hardening material, regardless of rotation, like the injection hole 11 of the exterior 10, and a plurality of discharge ports 22 are formed in a lateral direction as shown in FIG.
  • the lowermost inner tube 20 is formed in a hollow form from the upper side to the outlet 22, and is formed in a solid form from the outlet 22 to the lower side. That is, the cured material introduced into the injection port 21 is blocked in the solid section and discharged to the discharge port 22.
  • the bit 25 can be selectively mounted with the perforated type 25a and the expanded type 25b, as with the bit 15 described above.
  • the innermost end of the inner tube 20 is formed with a hexagonal shaft 20a extending downward from the outlet 22, and a screw of a predetermined length is formed at one end.
  • the hexagonal shaft 20a guides the mounting of the blade 41 constituting the mixer 40 to be described later, and the screw induces the bit 25 to be selectively engaged.
  • the sleeve 26 is mounted between the blades 41 on the hexagonal shaft 20a.
  • the sleeve 26 spaces the gap between the plurality of blades 41 mounted on the hexagonal shaft 20a to provide the vortex space 45. That is, the volume (size) of the vortex space 45 according to the soil can be arbitrarily adjusted through the sleeve 26 having various lengths.
  • the plurality of motors 30 are connected to the upper ends of the outer and inner tubes 10 and 20 by gears 31, respectively, and rotate the outer and inner tubes 10 and 20 in opposite directions.
  • the motor 30 is mounted to the frame P rotatably fixing the outer and inner tubes 10 and 20 as shown in FIG. 1.
  • the motor 30 is connected to a gear 31 or a chain fixed to the outer and inner tubes 10 and 20 to transmit rotational force.
  • the motors 30 rotate in opposite directions to mix the filler and the hardener supplied in the outer and inner tubes 10 and 20.
  • the inner tube 20 is rotated to the left. That is, the inner tube 20 is agitated and mixed mixing and the exterior 10 is rotated in the injection process after the perforation to form a void by the perturbation of the ground 10 around the exterior 10 to facilitate the smooth injection of the mixed material. Retaining walls are possible at the curing stage.
  • the motor 30 is divided into an electric type and a hydraulic type, it is preferable to configure the hydraulic type so as to exhibit a strong rotational force.
  • the mixer 40 is equipped with a plurality of blades (41) for pumping up and down to mix the filler and the hardener on the inner tube 20, the filler and the hardener are stirred between the blades (41) And the vortex space 45 is mixed with the mixed material.
  • the mixer 40 injects the ground 1 into the ground 1 in a state in which the filler that is pumped into the exterior 10 and the cured material discharged into the exterior 10 through the inner tube 20 are integrally mixed.
  • the mixer 40 is mounted at the lower end of the outlet 22 as shown in Figure 3, the forward blade 41 for feeding the filler and the hardening material downward, and the reverse blade 41 for feeding the filler and the hardening material upward.
  • the blade 41 can be mounted in two to five stages, but it is preferable that the blade 41 be configured in a forward-> inverse-> positive ... pattern from the lower end of the outlet 22.
  • the vortex space 45 is formed between the blades 41 and is an important space for stirring the filler and the hardener into the mixture.
  • the filler and the hardener are pressed into the vortex space 45 while rotating in the axial direction of the outer and inner tubes 10 and 20 by the forward and reverse blades 41.
  • Swirl occurs in the vertical direction of (10) (20). Therefore, the axial rotation by the blade 41 and the vertical rotation by the vortex space 45 occur simultaneously.
  • the blade 41 is composed of two or more wings to vortex the filler and the hardener, the wings adjacent to each other may be formed differently in the vortex direction.
  • the pair of wings facing each other is composed of a forward blade 41a that feeds the filler and the hardening material downward, and the other pair of wings is upward. It can be comprised by the reverse blade 41b which conveys by pressure. Since the blade 41 simultaneously generates vortices in the axial direction and the vertical direction of the filler and the hardener without interlocking with the blade 41 in the other direction, the mixing property can be improved. Therefore, since the number of blades 41 mounted on the inner tube 20 can be minimized, there is an advantage of easy maintenance while reducing the cost of overall construction.
  • the blade 41 by the blade may be configured as a screw, but the screw simply transfers (presses) the filler and the hardener, it is difficult to expect a complex vortex phenomenon.
  • the inner tube 20 according to the present invention is mounted to be arbitrarily variable height inserted into the exterior 10 as shown in FIG.
  • the viscosity increases with time, thereby curing the solid. That is, the viscosity and curing time of the mixture injected into the ground 1 can be adjusted by using the time difference between the mixture staying in the exterior 10 according to the height of the inner tube 20 inserted into the exterior 10. Therefore, by varying the viscosity of the mixture discharged from the exterior 10 according to the soil quality, the injection property can be improved, and above all, the curing time can be shortened, thereby preventing the secondary environmental pollution caused by the loss of the injection material. You can reduce the labor required.
  • the filler and the hardener is supplied by the pump from the inlet (11) 21 of the outer and inner tubes (10) (20) Then, the hardened material is discharged to the discharge port 22 to meet the filler. At the same time, the motor 30 operates so that the exterior 10 turns to 10 to 600 RPM and the inner tube 20 turns to 10 to 600 RPM.
  • the filler and the hardener are pushed downward into the vortex space 45 while turning right along the forward blade 41 and upwardly pushed into the vortex space 45 while rotating right along the reverse blade 41.
  • the filling material and the hardening material pressed into the vortex space 45 come into contact with each other to cause a vortex phenomenon in the vertical direction. That is, in the vortex space 45, the filler and the hardener are simultaneously axially rotated by the blade 41 and vertically rotated due to the upward and downward pressure, and are evenly mixed into the mixed material.
  • the mixed mixture is discharged from the exterior 10 by the continuous pumping of the pump and the blade 41 and filled into the voids in the ground 1.
  • Another aspect of the present invention is perforated to a predetermined depth on the ground (1), and related to the grouting method of mixing and injecting the filler and hardener in the ball (1a) and the preparation step (S10), supply step (S20), stirring step (S30), a continuous injection type grouting method for completing the construction through the injection step (S40). Since the device mentioned in the present method is the same as the device described above, a detailed description thereof will be omitted.
  • the preparation step (S10) prepares the outer and inner tubes 10, 20 connected in multiple stages according to the state and the depth of drilling as shown in Figures 1 to 3, the outer and inner tubes 10
  • the blade 41 is mounted on the blade 20 so that the vortex space 45 is formed. That is, the outer and inner tubes 10 and 20 are connected in multiple stages according to the depth of drilling of the ground 1 to prepare a set length.
  • the mixer 40 is selectively mounted on the lowermost outer and inner tubes 10 and 20 together with the bits 15 and 25 according to the state of the ground 1.
  • the inner tube 20 is inserted into the outer tube 10 together with the metal bearings, and then rotatably connected to the motor 30 mounted in the frame P. Wherein the frame (P) is mounted on the perforator such that the lifting movement is possible.
  • the supply step S20 sequentially inserts the outer and inner tubes 10 and 20 prepared as shown in FIG. 7 into the balls 1a, and presses down the filler in the outer tube 10 and the hardened material in the inner tube 20.
  • the outer and inner tubes 10 and 20 are lowered and inserted into the ball 1a excavated in the ground 1.
  • the filler and the hardening material are supplied to the inlets 11 and 21 of the outer and inner tubes 10 and 20 by a pump.
  • the supplied fillers and hardeners meet in the exterior 10 and are pushed downward and are supplied to the vortex space 45 through the blades 41.
  • the stirring step S30 rotates the motors 30 connected to the outer and inner tubes 10 and 20 in opposite directions as shown in FIG. 7, and the filler and the hardener are rotated according to the rotation of the blade 41.
  • Cross-feeding downward is mixed integrally in the vortex space (45). That is, the exterior 10 turns left at 10 to 600 RPM, and the inner tube 20 turns right at 10 to 600 RPM.
  • the filler and the hardener are pressed downward in the vortex space 45 while rotating right along the forward blade 41, and upwardly fed in the vortex space 45 while rotating right along the reverse blade 41.
  • the filling material and the hardening material pressed into the vortex space 45 come into contact with each other to cause a vortex phenomenon in the vertical direction. That is, in the vortex space 45, the filler and the hardener are simultaneously axially rotated by the blade 41 and vertically rotated due to the upward and downward pressure, and are evenly mixed into the mixed material.
  • the mixed material mixed in the vortex space 45 is downwardly transported along the blade 41 as shown in FIG. 7, and the compressed material is penetrated into the voids in the ground 1 and filled. That is, the mixed material is discharged from the exterior 10 by the continuous pumping of the pump and the blade 41. The discharged mixed material penetrates into the voids in the ground 1 and is filled.
  • the height of the inner tube 20 is varied as shown in FIG. 8 according to the soil during the injection to adjust the curing time together with the viscosity of the mixture to an appropriate value.
  • the height of the inner tube 20 may vary during the injection, and may vary before injection so that the viscosity and curing time can be adjusted to an appropriate value. That is, even in various environments of the ground 1, the mixture can be cured at a set time while stably filling the mixture.

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Structural Engineering (AREA)
  • Agronomy & Crop Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Soil Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
PCT/KR2016/000752 2015-01-24 2016-01-23 연속 주입이 가능한 블레이드형 그라우팅 장치 및 이를 이용한 연속 주입식 그라우팅 공법 WO2016117975A2 (ko)

Applications Claiming Priority (2)

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KR1020150011629A KR101580281B1 (ko) 2015-01-24 2015-01-24 연속 주입이 가능한 블레이드형 그라우팅 장치
KR10-2015-0011629 2015-01-24

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WO2016117975A2 true WO2016117975A2 (ko) 2016-07-28
WO2016117975A3 WO2016117975A3 (ko) 2016-09-09

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KR102500466B1 (ko) 2022-10-24 2023-02-16 (주)한세지반엔지니어링 스마트 그라우팅 시스템

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KR100219080B1 (ko) 1996-08-09 1999-09-01 김영환 반도체 장치의 패키지용 리드프레임 및 반도체 장치
KR100226656B1 (ko) 1997-08-07 1999-10-15 유태로 Cept계 1차군 다중화 장치의 원격제어 장치 및 방법
JP3581803B2 (ja) * 1999-08-04 2004-10-27 株式会社親和テクノ ２重管の正逆回転装置
KR100537071B1 (ko) * 2003-04-03 2005-12-16 홍지기술산업주식회사 지반 그라우팅용 선단장치
JP2004337786A (ja) * 2003-05-16 2004-12-02 Sekkeishitsu Soil:Kk 撹拌装置及び撹拌方法
KR100478321B1 (ko) 2003-06-16 2005-03-25 (주)진양비지엠텍 이중관내에 제 1, 2혼합 가이드 및 믹싱 가이드와역류방지밸브를 장착한 그라우팅 액 주입장치 및 이를이용한 그라우팅 시공방법
KR200443194Y1 (ko) * 2008-06-13 2009-01-21 무풍건설주식회사 경화시간 조절이 가능한 그라우팅장치의 주입관
KR101051721B1 (ko) * 2009-06-30 2011-07-25 (주)대우건설 노즐 및 돌기를 이용하는 그라우팅용 선단장치
KR100972418B1 (ko) 2009-12-04 2010-07-26 김영용 주입재 혼합 주입장치 및 이를 이용한 지중 분사공법
KR101440429B1 (ko) 2013-12-02 2014-10-30 김한석 그라우팅 선단장치
KR101542434B1 (ko) * 2014-12-19 2015-08-07 (주)태화개발 연속 주입식 그라우팅 장치 및 이를 이용한 연속 주입식 그라우팅 공법

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